Jetson Inference: Color Mapping - Jetson Inference

| | Jetson Inference

DNN Vision Library |

Color Mapping Utilities Library (jetson-utils) » CUDA

Defines various colormaps and color mapping functions. More...

Enumerations

| | enum | cudaColormapType {
COLORMAP_INFERNO, COLORMAP_MAGMA, COLORMAP_PARULA, COLORMAP_PLASMA,
COLORMAP_TURBO, COLORMAP_VIRIDIS, COLORMAP_INFERNO_INVERTED, COLORMAP_MAGMA_INVERTED,
COLORMAP_PARULA_INVERTED, COLORMAP_PLASMA_INVERTED, COLORMAP_TURBO_INVERTED, COLORMAP_VIRIDIS_INVERTED,
COLORMAP_FLOW, COLORMAP_NONE, COLORMAP_LINEAR, COLORMAP_DEFAULT = COLORMAP_VIRIDIS
} | | | Enumeration of built-in colormaps. More...
| | |

Functions

| | cudaColormapType | cudaColormapFromStr (const char *colormap) | | | Parse a cudaColormapType enum from a string. More...
| | | | const char * | cudaColormapToStr (cudaColormapType colormap) | | | Convert a cudaColormapType enum to a string. More...
| | | | template<typename T > | | cudaError_t | cudaColormap (float *input, T *output, size_t width, size_t height, const float2 &input_range=make_float2(0, 255), cudaDataFormat input_format=FORMAT_DEFAULT, cudaColormapType colormap=COLORMAP_DEFAULT, cudaStream_t stream=NULL) | | | Apply a colormap from an input image or vector field to RGB/RGBA. More...
| | | | cudaError_t | cudaColormap (float *input, void *output, size_t width, size_t height, const float2 &input_range=make_float2(0, 255), cudaDataFormat input_format=FORMAT_DEFAULT, imageFormat output_format=IMAGE_UNKNOWN, cudaColormapType colormap=COLORMAP_DEFAULT, cudaStream_t stream=NULL) | | | Apply a colormap from an input image or vector field to RGB/RGBA. More...
| | | | template<typename T > | | cudaError_t | cudaColormap (float *input, size_t input_width, size_t input_height, T *output, size_t output_width, size_t output_height, const float2 &input_range=make_float2(0, 255), cudaDataFormat input_format=FORMAT_DEFAULT, cudaColormapType colormap=COLORMAP_DEFAULT, cudaFilterMode filter=FILTER_LINEAR, cudaStream_t stream=NULL) | | | Apply a colormap from an input image or vector field to RGB/RGBA. More...
| | | | cudaError_t | cudaColormap (float *input, size_t input_width, size_t input_height, void *output, size_t output_width, size_t output_height, const float2 &input_range=make_float2(0, 255), cudaDataFormat input_format=FORMAT_DEFAULT, imageFormat output_format=IMAGE_UNKNOWN, cudaColormapType colormap=COLORMAP_DEFAULT, cudaFilterMode filter=FILTER_LINEAR, cudaStream_t stream=NULL) | | | Apply a colormap from an input image or vector field to RGB/RGBA. More...
| | | | cudaError_t | cudaColormapInit () | | | Initialize the colormap palettes by allocating them in CUDA memory. More...
| | | | cudaError_t | cudaColormapFree () | | | Free the colormap palettes after they are done being used. More...
| | |

Detailed Description

Defines various colormaps and color mapping functions.

Enumeration Type Documentation

◆cudaColormapType

| enum cudaColormapType |

Enumeration of built-in colormaps.

See alsocudaColormapTypeFromStr() and cudaColormapTypeToStr()

Enumerator
COLORMAP_INFERNO

Inferno colormap, see http://bids.github.io/colormap/.

| | COLORMAP_MAGMA |

Magma colormap, see http://bids.github.io/colormap/.

| | COLORMAP_PARULA |

Parula colormap, see https://www.mathworks.com/help/matlab/ref/parula.html.

| | COLORMAP_PLASMA |

Plasma colormap, see http://bids.github.io/colormap/.

| | COLORMAP_TURBO |

Turbo colormap, see https://ai.googleblog.com/2019/08/turbo-improved-rainbow-colormap-for.html.

| | COLORMAP_VIRIDIS |

Viridis colormap, see http://bids.github.io/colormap/.

| | COLORMAP_INFERNO_INVERTED |

Inferno colormap (inverted), see http://bids.github.io/colormap/.

| | COLORMAP_MAGMA_INVERTED |

Magma colormap (inverted), see http://bids.github.io/colormap/.

| | COLORMAP_PARULA_INVERTED |

Parula colormap (inverted), see https://www.mathworks.com/help/matlab/ref/parula.html.

| | COLORMAP_PLASMA_INVERTED |

Plasma colormap (inverted), see http://bids.github.io/colormap/.

| | COLORMAP_TURBO_INVERTED |

Turbo colormap (inverted), see https://ai.googleblog.com/2019/08/turbo-improved-rainbow-colormap-for.html.

| | COLORMAP_VIRIDIS_INVERTED |

Viridis colormap (inverted), see http://bids.github.io/colormap/.

| | COLORMAP_FLOW |

Optical flow x/y velocity (2D)

| | COLORMAP_NONE |

Pass-through (no remapping applied)

| | COLORMAP_LINEAR |

Linearly remap the values to [0,255].

Default colormap (Viridis)

| | COLORMAP_DEFAULT | |

Function Documentation

◆cudaColormap() [1/4]

template<typename T >

Apply a colormap from an input image or vector field to RGB/RGBA.

If the input and output dimensions differ, this function will rescale the image using bilinear or nearest-point interpolation as set by the filter mode.

Parameters

See alsocudaColormapType) Parameters

◆cudaColormap() [2/4]

Apply a colormap from an input image or vector field to RGB/RGBA.

If the input and output dimensions differ, this function will rescale the image using bilinear or nearest-point interpolation as set by the filter mode.

Parameters

See alsocudaColormapType) Parameters

◆cudaColormap() [3/4]

template<typename T >

Apply a colormap from an input image or vector field to RGB/RGBA.

If the input and output dimensions differ, this function will rescale the image using bilinear or nearest-point interpolation as set by the filter mode.

Parameters

See alsocudaColormapType) Parameters

| format | layout of multi-channel input data (HWC or CHW). |

◆cudaColormap() [4/4]

Apply a colormap from an input image or vector field to RGB/RGBA.

If the input and output dimensions differ, this function will rescale the image using bilinear or nearest-point interpolation as set by the filter mode.

Parameters

See alsocudaColormapType) Parameters

| format | layout of multi-channel input data (HWC or CHW). |

◆cudaColormapFree()

| cudaError_t cudaColormapFree | ( | | ) | |

Free the colormap palettes after they are done being used.

Only needs to be called if the other colormap functions were.

◆cudaColormapFromStr()

Parse a cudaColormapType enum from a string.

ReturnsThe parsed cudaColormapType, or COLORMAP_DEFAULT on error.

◆cudaColormapInit()

| cudaError_t cudaColormapInit | ( | | ) | |

Initialize the colormap palettes by allocating them in CUDA memory.

NotecudaColormapInit() is automatically called the first time that any colormap is used, so it needn't be explicitly called by the user unless they wish to do it at start-up. ReturnscudaSuccess on success or if already initialized.

◆cudaColormapToStr()

Convert a cudaColormapType enum to a string.

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